Donna is a writer and lover of cats. She has been a cat parent for many years. She loves sharing her love for all cats big and small!
Is My Cat's Sense of Smell Stronger than Mine?
I've always wondered if my cat can smell things better than me. I often see their noses lift in the air. I wonder what they smell; is it food cooking in the distance or another animal or cat?
Do they smell me?
Scientific Lingo, which I genuinely don't get, but here we go:
A cat's sense of smell is fourteen times stronger than humans and has twice as many receptors in the olfactory epithelium (smell-sensitive receptors).
They also have a different olfactory organ called the vomeronasal organ, also known as Jacobson's Organ. This organ is found in the roof of the mouth and contains receptor cells that connect to the region of the brain associated with sexual, feeding, and social behaviors.
And the vomeronasal organ is involved in courtship and sexual behavior, as well as the ability of cats to recognize other cats and people.
Cats Sense of Smell -vs- Humans
What's My Cat Sniffing?
3 Different Scent Receptors
There are three diverse kinds of scent receptors in mammals' noses! Let's look at how the receptors function and how cats smell things a lot better than humans and K9s!
One of the sensory cells is called V1R, and it controls a mammal's ability to separate one scent from the other.
The Number of V1R's in mammals:
- Humans three
- Dogs nine
- Cats twenty-eight
- Squirrel 110
- Mouse 239
- Platypus 283
Cats Trained for Search and Rescue
Cats trained for search and rescue would be more successful than dogs because they have more muscular sensor receptors to sniff out drugs, diseases, and corpses and find lost people.
Is Such Training Possible?
Science hasn't figured out a way to get cats to do this, and I'm not surprised at all; I mean, can you get your cat to do things she doesn't want to do? I know that I can't. I'll get that look like, "really Mom, nice try!'
Successful cat training is achieved through the reward of food/reward programs; then again, the success rate is not scientifically known.
But What is The Problem?
Cats do what they want when they want and how they want! And when it comes time for cats to react quickly and when time is of the essence, all a cat wants to do is take a nap!
Here let's let Lynyrd Skynyrd Explain It! Just Kidding, I love this song!
Cats Survival - The Importance of Smell
Some scientific lingo to make your head spin, let's have some fun, shall we?
"Among species with intermediately sized V1R repertoires, the elephant (∼30 intact V1Rs) appears to have a well-developed VNO (Johnson and Rasmussen 2002), as do the cat (∼30 intact V1Rs) (Salazar et al. 1996) and armadillo (∼60 intact V1Rs) (Carmanchahi et al. 1999), albeit different from armadillo species from which DNA sequences are available. We have not attempted any quantitative comparisons here due to the difficulty of comparing anatomical observations between different studies, especially when the species studied have vastly differing body and relative brain sizes." Genome Research
What A Catmazing World!
The amazing world of cats exists of scents and odors (smells) to sense out territory markings, hunt for food, look for mates, and to smell their enemies from miles away.
And they use their sense of smell the moment they are born.
Kittens are born blind, and a kitten uses her senses to locate their mother's teat, and it's from that moment on they know their sense of smell will always lead them to food!
Do NOT Cross MY Territory Lines - Cats Smell You!
Male Cats Markings and Territorial Behaviors
Male Cats are Territorial
Male cats mark their territory by spraying their urine (pheromones) on trees and brushes to ward off the enemy's attempt to cross the territory lines that the territorial cat has marked.
Male cats set boundary lines and travel to each section frequently, sniffing their markings to ensure they are still strong, and if not, they respray it.
A Cats Line of Silent Communication
Pheromones: These are responsible for the cat's communications with one another. According to Wikipedia.org/wiki/Cat_Pheromone
"Feline facial pheromone is a pheromone used by cats to mark places, objects, and persons as familiar by rubbing their faces on surfaces. Several pheromones are currently known as "feline facial pheromones" produced from glands around the mouth, chin, forehead, and cheeks."
Do Cats Have A Good Sense of Smell?
Pheromone Sensory at Work
Have you ever noticed that when your fur baby smells something good or bad, they will wrinkle their nose, and her tongue will curl just a bit?
Or you may have seen them smell something and go crazy on it, and it's not sensory sensitive to your nose?
The Reason for Cat's Reactions
Pheromones, V1R cells, and Jacobson's Organ are at work, and it's fascinating and incredible! If you watch your cat closely, you will see them use this organ when they sniff something that smells horrible to you, but they take a fancy to it!
They sniff it, then raise their head with their mouth open, looking like they are smiling at you.
So, now you know that cat sensory receptors are more powerful than humans and dogs, and other mammals!
They need a good sense of smell while out in the wild for their ability to survive, and our domestic cat's sense of smell is essential too.
Cats mark us in several ways showing us they accept us into their pride by a sniff, a hug, and a rub, and that love is for life!
Here's Jacobson's Organ at Work...Video provided by purrrka YouTube channel
This article is accurate and true to the best of the author’s knowledge. It is not meant to substitute for diagnosis, prognosis, treatment, prescription, or formal and individualized advice from a veterinary medical professional. Animals exhibiting signs and symptoms of distress should be seen by a veterinarian immediately.
© 2019 Donna Rayne
Donna Rayne (author) from Sparks, NV on December 22, 2019:
Peggy, sorry to hear about the loss of your cats, both my daughter's elderly cats passed away this year and they were heartbroken! It was so sad!
Yes, When I was researching this article, I was amazed by how differently the olfactory senses work in different animals. It is quite fascinating indeed!
Thank you for reading my article. :)
Peggy Woods from Houston, Texas on December 22, 2019:
It is fascinating how the olfactory senses differ between different animals. I miss our cats who are now gone to the great beyond. They marked us like their personal possessions when they were a part of our family.
Kemuel Emmanuel on November 05, 2019:
Sights, yes, Cats do have an acute sight. But smell, i have got to give the dog the first prize. My Dog Jimmy can smell the stench from my shoe even before i am actually home but my mom's cat, well i dont think it can.